cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A293846 Numbers such that k is the altitude of a Heronian triangle with sides m-13, m, m+13.

Table of values

n a(n)
0 9
1 24
2 39
3 60
4 105
5 156
6 231
7 396
8 585
9 864
10 1479
11 2184
12 3225
13 5520
14 8151
15 12036
16 20601
17 30420
18 44919
19 76884
20 113529
21 167640
22 286935
23 423696
24 625641
25 1070856
26 1581255
27 2334924
28 3996489
29 5901324
30 8714055
31 14915100
32 22024041
33 32521296
34 55663911
35 82194840

List of values

[9, 24, 39, 60, 105, 156, 231, 396, 585, 864, 1479, 2184, 3225, 5520, 8151, 12036, 20601, 30420, 44919, 76884, 113529, 167640, 286935, 423696, 625641, 1070856, 1581255, 2334924, 3996489, 5901324, 8714055, 14915100, 22024041, 32521296, 55663911, 82194840]